Mysterious Earth

S01E05 Secrets without explanation throughout history: Ancient civilizations not only left a record of their activities but also unresolved riddles. Pre-Columbian secrets, the disappearance of civilizations, lost tombs, mysterious loss of people and ships. Today, new evidence discovered by archaeologists and investigations carried out with 21st-century technology surprise the world. Follow us on a fascinating journey to discover the most interesting enigmas in history.